Machine for operating on shoes



y 1933- .1. c. JORGENSEN ,449

MACHINE FOR OPERATING ON SHOES Filed July 7, 1930 3 Sheets-Sheet 1 l/E/VTUAZ TIC/0Q, QjTM m 1 May 1933- J. c JORGENSEN 1,911,449

MACHINE FOR OPERATING ON SHOES Filed July 7, 1930 5 Sheets-Sheet 2 130/A/ l/E/V 70/9.

y 1933- J. c. JORGENSEN 1,911,449

MACHINE FOR OPERATING ON SHOES Filed July 7, 1930 5 Sheets-Sheet 5 "I!Fig. 5.

Patented May 30, 1933 UNITED STATES JERSEY Application filed July 7,

This invention relates to machines for operating on shoes, and is hereinillustrated as applied to an automatic heel-seat lasting machine of. atype disclosed generally, in

Letters Patent No."1,583,044, granted on May l, 1926 upon an applicationof C.

' Hoyt, except as to somefeatures of the shoe support and its operatingmechanism which are more particularly disclosed 111] Letters Patent No.1,558,737, granted on October 27,

1925 upon an application of R. F. McFeely. It is to be understood,however, that in its more generalaspectsthe inv'ention is not limitedtomachines of that particular'type V nor to machines for lasting shoes.

rearwardly against agheel band and isalso pressed against a holddownwhich determines adjustably the, location of the heel end of the-sole orinsoleinrelation to the plane of the, heel-lasting wipers. Combinedwiththe means forthus operating thejack is also mechanism for closingthe heel band inwardly against; the opposite sides of the heel :end ofthe shoe. In the operation of such machines it may sometimes happen, by

0 reason, for example, of improper adjustment of the holddown, that theshoe is so positioned as to oppose abnormal resistance to the, operativemovement of the wipers, as a result of which the operation of themachine is stopped before it completes its cycle. Un-

der such conditions it has been necessary heretofore for the operator,by the use of a lever applied to .a wheel on the machine, to completethe cycle of the, machine manually.

This is a slow and diflicult operation and involves danger of damagingthe shoe or of breaking some part of the machine.

An object of the present invention is to' avoid such difiiculties anddisadvantages as above mentioned, andto this endthe invene tion, in oneaspect, provides novel means, whereby'the'resistance to the: operationof a machine, if excessive, may be readily and quickly decreased, forexample, if the ma- 0 chineis stopped under conditions such as PATENT O-E:

. moor; c. JORGENSEN, or BEVERLY, MASSACHUSETTs, 'AssIeNon a pease sironMACHINERY CORPORATION, or rarnnsom vnw :rnnsnY, A CORPORATION on NEWMACHIDIE FOR ornm'rme 01v: sHons 1930. Serial No. 465,940.

described, so that the machinemay complete its movements and return theparts to their startingv positions. For the purpose in view, as hereinillustrated, a bell-crank lever whereby both thejack and' the; heel bandare operated to clamp the shoe is: so constructed that one of its armscomprises two relatively movable parts which are normallyheldin a fixedrelation to each other but may be manually disconnected to; permitrelative movementbetween-them such as to relax the pressure on the shoeand thus permit-the shoe to yield so that the wipers can complete theiroperative movements. In the construction shown, moreover, automaticmeans; is provided for restoring the two parts of" the lever to theirnormal fixed relation to each other in the continued operation of themachine. 7 W

Thenovel features of the invention, in-

cludingvarious novel details of construction and combinations of parts,will now bemore particularly described by reference 'to the accompanyingdrawings and pointedout in" the claims.

In the drawings,

- Fig. 1 is a view,partly in side elevation and partly in verticalsection, of a portion of a machine in which the invention is em bodied,illustrating the positions of the a parts when the machine is stopped byabnormal resistance to the movement of the wipers' V i F ig. 2 is a viewinside elevation ofthe mechanism provided for purposes offlthisinvention and; portions of the machine associ'ated therewith, with theparts in their nor-: mal starting positions; Y

Fig. 3 is a viewin front elevationfof the parts shown in Fig.2; a

Fig. 4 is aview similarto Fig. '2, but illustrating the positions of theparts when the pressure .ona shoe has been relaxed by the novelmechanism provided; and

Fig. 5 is a viewspartly in plan and part- 3 "ly in section showing themechanism for j operating the heel band togclamp the'shoe.

lllacliines; of the typeillustrate'd comprise in their organizationheel-lasting wipers 1O which are .moved length-wise and laterally hereinshown are constructed as disclosed in Letters PatentNo. 1,852,015,granted upon an application of mineon April 5, 1932. The wipersareoperated by a path cam 14 formed a cam wheel 16 fast on a shaft 18,

through connections including a roll 20 and a slide 22, as more fullydisc-losed in the lastmentioned Letters Patent. 7

Theshoesupport or. jack comprises a holdor 24 mounted for swingingmovements abouta shaft 26*rotatable in bearings in the frame of themachine, and a provided with a pair of pawls arranged to enga e aratchetwheel 42 which is "faston the shaft for turning thejpinion 36 andthus raising the jack post 28. By this mechanism the heel-seat face ofthe shoe is pressed against a holddown 44-wh1ch determines 'adustablythe height of the shoe and accordingly the relation of its'-heel-seat,

face tothe'plane of the wipers 10. For imparting' to the pawls 40 theiroperative movement there is connected to the pawl carrier 38 a rod 46onthe upper end ofwhich is secured a cylindrical member 48- whlch servesas ahousingfor a spring 50 interposed between the upper end of themember 48 and a plunger 52 on the lower end of rod 54 which is slidablein the member 48. The rod 54 at its upper end is 0011- nected toabell-crank lever 56 provided with a gear sector 58 engaged by rackteeth formed on the lower face of a slide 60 pressedforwardly by springs61, this slide having other rack teeth on its upper face V engaged by anoperating pinion 62 which is formed on a shaft 64, 'The shaft 64 isarovided" with another pinion 66 en ao'ed L b o J by a gear sector 68formed on one arm of a bell crank lever 70 fulcrumed at 72 on the frameof the machine, the other arm of this bell-crank-lever, constructed asmore particularly hereinafter described, being provided' with a roll 74(Fig. 3) engaged 'bv' a cam facet; on the cam wheel'l6j It will thus beseen that through the connections described thejack post 28 is operatedto The wipers and the as-' post 28 movable upwardly and downwardly inthe hold-V er and provided at its upp'erfend-with a pin 30 whichenters'the spindle hole in the last.

press the shoe yieldingly against the hold down 44, the spring 50 beingcompressed more or less in this operation.

In addition to operating the jack post 28 as above described, themovement of the slide 60 is also utilized to impart rearward movement tothe jack and'thus to press the heel end of the shoe againsta heel band78,

and also to close the heel band inwardly against the opposite sides ofthe heel end of the shoe. For imparting rearward movement to the jackthe bell-crank lever 56 is connected by a link to a pawl carrier 82provided with a pawl 84 in engagement withv a ratchet wheel 86, theratchet wheel being connected to a pinion 88 which operates a rack bar90 connected to the holder24 of the jack, as more fully disclosed inLetters Patent No. 1,583,044. For operating the heelband, as alsodisclosed in said Letters Patent,-the slide 60 acts through a spring 92upon a rod 94 provided with a cross bar 96, (F ig. 5) in engagement atits opposite ends with rack bars 98, each rack bar being operativelyconnected with a' lever which is connected in turn by a link 102 to anarm 104 provided with means for pressing the heel band against the sideof theshoe.

In the use of the machine constructed as thus far described the operatorfirst mounts a last and shoe on the heel pin 30 and then swings the jackrearwardly as fargas he can conveniently by hand to carry the shoe intothe heel band 78, at the same time raising the jack post 28 to carry theheel-seat face of the shoe against the holddown .44 by the operation ofa treadle (not shown) which acts on the lower end of the rod 32, as morefully disclosed in Letters Patent No. 1,558,- 737. Thereafterhe tripsthe clutch to start the power operation ofthe machine. In the normaloperation of the machine the cam shaft 18 makes a complete revolution atthe end of which the machine is brought automatically to a stop with allthe parts in their starting positions. During this operation there isfirst imparted yieldingly to the jack a rearward movement through thepinion 88 and the rack bar 90 to carry the shoe farther into the heelband by mechanism not herein shown but fully disclosed in Letters PatentNo. 1,583,044, and at the same time the holddown 44 is depressedsomewhat to I position the heel-seat face of the shoe in a predeterminedrelation to the wipers. Thereafter the slide 60 is operated to press theshoe still more firmly against the heel band and against the holddownand also to close the heel band against the opposite sides" of the shoe,whereupon the wipers are on erat'ed to wipe the margin of thelupper inwardly over" the heel seat. Thewlpers are then retracted from over theheel seat and a further movement is imparted to the slide 60 to clampthe'shoe' still more firmly in the heel band and also to raise 'it'alittle higher than before, the holddown 44being' raised slightly topermit this upward movement of'the shoe; A second operative movement isthen imparted to the wipers to wipe the upper more firmly over the heelseat, after which the tacks are driven to fasten the upper, the parts ofthe machine then being returned to their startingpositions.

At the time of the second operative move- 1 ment of the Wipers it mayhappen, in case the holddown 44 is so adjusted that the shoe ispositioned a little higher than it should be, that the resistance of theshoe to the movement of the wipers will cause the machine to come to-astop without comple"- ing its cycle. In that event it has been necessaryheretofore for the operator, after releasing the clutch to disconnectthe machine from the source of-power by the means disclosed in LettersPatent No. 1,583,044, to operate'the machine manually throughtheremainder of its cycle; This, as -above stated, is a slow and diflicultoperation, and involvesdanger of damaging the shoe or, of

breaking some part of the machine. T

eliminate the necessity I for such manual operation of the machine withthe disadvantages involved, the machine herein shown is so constructedthat the pressure with which the shoe is clamped and held may be relaxedsufliciently to permit the shoe to yield heightwise under the pressureof the wipers and thus permit the machineto complete its cycleautomatically. Forthe purpose in' view that arm of the bell-crank lever70 which carries the roll- 7 4 is made in two parts 106 and 108, thepart106 being inthere is provided a handlever 118 fast ona rock shaft 120which is mounted in a bracket 122 secured to one side of the lower armof the bell-crank lever 70 and extends the lower end of the latch 112and thus to' disconnect the latch from the plate 114 when the lever 118is swung toward the right, as

- illustrated in Fig. 4. :Suclrmovement of the hand lever 118 iseffected against the resistance of a torsion spring 126 which acts toreturn the hand lever to its normalposition as soon as the operatorreleasesit, the

normal position of. the lever being determined by a pin 128. onthebelL-crank lever 7 Din engagement with one of the cams 124;

' It'will be understoodthat Whenthedatch i 112 is disconnected from thePlatee114by the movement "of (I the'hand lever 118, as above described,the operative connection I between the parts 106 and108of'the'upwardlyextending arm of the bell-crank lever is broken, so that the cam face 76no longer has any effect ,on the lower arm of the bellcrank'lever, andconsequently the: slide 60 isrelea'sed so that the parts controlledthereby for pressing the shoe up against theholddown and rearwardlyagainstthe, heel band and for alsopressingthe heel band againsttheopposite sides ofthe shoe are no longer effective to applyanysubstantial pressure to the shoe. As aresult ofexpansion ofthe springs50', 61 and 92'the parts 'ofthe bellcrank lever 70 assume relation toeach other such asnillustrated in Fig. 4. Al though the shoe is at thistime still under control of the means hereinbefore referred to wherebyitis pressed yieldingly against the heelfband prior to theoperative'movement of the slide 60, the pressure-with which the shoe isheld is nevertheless so far relaxed that it is rea'dilyyieldabledownwardly in response to thepressure of the wipers there on, andaccordingly the machine will immediately. complete its cycle ofoperative movements as soon as the'latch 112 is dis connected from theplate 114 as described, Under these conditions the *lasting tacks willusually be driven only part wayinto the shoe, so that" they may bereadily removed. to permit'the lasting of the heel end of the shoe to berepeated after-proper adjustment'of the holddown 44. P

The part 108 of the upwardly'extending arm of the bell-crank lever --70' is controlled by a torsiorrspring130which tends to'.-1 eturnit intoits normal relation to the part 106, such return movement being limitedby a shoulder-131 on the part 106, and between the two partsa pin andslot "connection 132, 134 is provided to limit relative movement of theparts out{ of their normal operative relation and thuspreventdanger ofexcessive strain on the spring a 130. By reasonof the action of thespring 130 the'part108 is returned automatically into itsnormal-relation to the part 106 as soon as such return movement ispermittedby the 0511111 210676 in the continued operatioii ofathemachine,

the latch 112 thenbeing returned to its operative holding position byits spring 116. The parts of the mechanismare thu'sire storedautomatically to their normalrelation to one another without any part ofthe operator.

Having thus described 7 attention "on my invention, what I claim as newand desire tosecure by Letf ters Patent of 'the United Statesis: Inalastingmachine, the combination with: means) :forfllasting a shoe, of"automatic ers to relax. the clamping pressure on the shoesufficientlyfto permit themachine to complete its cycle, :2 a

'- 17.111 a heel-endelasting machine, the com- 'mechani sm forcontrolling the shoe, a. por;

tion of said" mechanism being displaceable to interrupt its control ofthe shoe in the event of abnormal resistance of the shoe to themovementof the lasting means.

2. In a power-operated lasting machine, the combination with means forlasting a shoe, of mechanism movable automatically to clamp' the shoeafter the starting of the power operation ofthe machine, a portion ofsaid mechanism being displaceable to relaX the clamping pressure on theshoe in the event of abnormal resistance of the shoe to the movement ofthe lasting means.

3. In a lasting machine, the combination withtmeans'for lasting a. shoe,of a powerdriven cam, mechanism operated by said cam for controlling theshoe in the lasting operation, and means for rendering said mecha to theoperative-movement of the wipers, to decrease that resistancesufliciently to permit the machine to complete its cycle.

5. Inaheel-end-lasting machine, the combination with heel-lasting wipersmovable in an automatically determined :cycle of operations ofthemachine torwipe the margin of the heel end of the upper of a shoe-intolasted position, of automaticfmeans forcontrol- I ling the shoe, saidmeans'includingparts v relatively movable out of their normal operativerelation to each other afterengages ment of the wlperswlth the shoe to-decrease the resistance of theshoe to the operative movementof thewipers in the event of abnormal resistance to such movement.

7 4 v6. In a heel-endTlasting machine, the combination with heel-lastingwipers movable in an automatically determined cycle of operations ofthemachine to wipe the margin of V the heel end ofthe upper of a shoe intolasted'position, o l' means for clamping and holding the shoejfor theoperation of said wipers, said meansincluding parts relatively movable.out of their normal operative relation to each other, if the operationof the machine is stopped by abnormal resistance of the shoe to theoperative movement of the wipbinationwith heel-lastingwip'ers movable inan automatically determinedcycle of op"- erations of the .machine towipethe margin of the heel end of the'upper of a shoe into lastedposition, of a shoe support anda hold- 7 down arranged to clamp a shoebetween them for theoperationof said wipers, and

mechanism forrenderingthe shoe support ineffective to maintain the shoeagainst the holddown arranged to clamp a shoe between them for theoperation ofsaid wipers, and automatic means for controlling said shoesupport in the normal operation or the machine, saidmeans includingparts relatively movable out oftheir normal operative relation to eachother to permit movement of the shoe in a direction away from theholddown if the operation of the machine is stopped by abnormal resistancc of the shoe to the moves ment of the wipers.

9. In a heel-end-lasting machine, the comination with heel-lastingwipers movable in an automatically determined, cycle of operations ofthe machine to wipe the margin of the heel end of the upper of a shoeinto lasted. position, of a shoe support and a heel band for positioningand holding the shoe for the operation of said wipers, and mechanismmovable at the will of-the operator, if the. stopped by abnormalresistance of the slips to the operative movement ofthe wipers, to relaxthe pressure of, (the heel bandwon the shoe and ,to 'render the shoesupport inefiec tive to o maintain the shoeat its normal heightf 1 110.,In a heel-end-lasting" machinef the combination with heel-lasting wipersmovable 1n an automaticallydetermined cycle of operations of the machineto wipe the margin of the heel end ofthe upper 01": a shoe intolasted-pos1t1omof ajack for sup porting the shoe for the operation'ofsaid wipers, a holddownfor engaging the bottom I of the heel end of theshoe, a heel band for embracing, the heel end of the shoe, and

mechanism for operating the jack to press the shoe against the holddownand against the heelband, said mechanism comprising parts'relativelymovable'out of their normal l peration of the machine is" operativerelation'to each other to relax the,

pressure of the shoe on the ho'lddown and on the heel ban'd intheeventof abnormal resistance of the shoe to the movement of th wipers: iii

1. In a heel-end-las'ting machine,

combination with heel-lasting wipers mov able in an automaticallydetermined" cycle of operations of the machine to wipe the margin of theheel'end of theupper of a shoe into lasted position, of a shoe supportand a heel band for positioning and holding the shoe for the operationof said wipers, and automatic means for controlling said shoe supportand heel band in thenormal operation of the machine, said meanscomprising a device connected both to the shoe support and to the heelband and movable at the will of the operator, if the operation of themachine is stoppedby abnormal resistance of the shoe to the operatingmove tion to each other to decrease the resistance mentor the wipers,to'relax the pressure of the heel band on the shoe and to renderthe shoesupport ineffective to maintain the shoe at its normal height.

12. In a heel-end-lasting machine, the combination with heel-lastingwipers movable in anautomatically determined cycle of operations of themachine to wipe the margin of the heel end of the upper, of a shoe.

into lasted position, of mechanism including a lever for controlling theshoe, said lever comprising partsrelatively movable out of their normaloperative relation to each other to decrease the resistance of the shoeto the operative movement of the wipers in the event of abnormalresistance to that move ment.

13. In a heel-end-lastingmachine, the combination with heellastingwipersmovable in an automatically determined cycle of operations of the.machinetowipethe mar gin of the heel end of the upper of a shoe intolasted position,.of mechanism including a lever movable to clamp theshoe, saidlever comprisingparts-relatively movable out of their normaloperative relation to-each'other to relax the clamping pressure on theshoe if the shoe opposes abnormal resistance to the movement of theWIPQI'S' I I V 14:. In a heel-end-lasting machine, the

combination with heel-lasting wipers movof the shoe to the operativemovementof the wipers if the resistanceis such as to prevent thecompletion of that movement. 1

15. In a heel-end-lasting machine, the combination with heel-lastingwipersmovable in an automatically determined cycle of operations of themachineto wipe the marginof the heel end of the upper of a shoe intolasted position, of mechanism including margin of the heel-end aleverfor controllingthe shoe, saidlever comprising parts relatively movableout of their normal operative relation to each other to decrease theresistance of the shoe to the.

operative movement of the wipers if the v resistanceis suchas tovpreven't the compl etion of .that movement, i ranged vto-maintain the partsof-the. lever in their "normal relation ,to each, other but;

(lisplaceable at the'Will of: the operator t o permit their. relativemovements 16.. In a heel-end-lasting machine,

combination with heel-lasting wipers movand a device arable in anautomatically.determined cycle of operations of the, machine; to wipethe margin of the heelend'of the upper of a shoe intolasted position, ofmechanism m0v-,

able after engagement of the wipers, with the shoe to de crease the;resistance ofkthe shoe to the operativemovement of the Wipers if theresistance, is such as to prevent the-completion'of thatmovement, andautomatic means for restoring said. mechanism to its normal condition.prior to the next operation of the machine on a shoe.

117-. In a heel end lasting" machine, the

combination with heel-lasting wipers movable in an automaticallydetermined cycle of operations of the machine to wipe the margin of theheel end of. the upper of a shoe into lasted position, ofautomaticmechanism for controllingthe shoe in theinorma]. operation ofthe machine, said mechanism comprising partsrelatively movable out or"their normal operative relation'fto eachother, if the operation of.themachine isstopped by abnormal resistance of the shoe to the operat'vemovement off-the wipers, to decrease that resistance sufficiently topermit the rmachine to complete its cycle, and automatic meansvforrestoring said parts to'their normal relation to each other. 18.;In,a .heel-end-lasting machine, the combination l with heehlasting wipersmov able. in an automatically determined cycle of operations of themachine to wipe the of the upper of a shoe-into lasted position,ofautomatic mechanism for controllingthe shoe in the normal operation ofthe machine, said mechanisnrcomprising a lever having parts rela tivelymovable out of their normal operativezrelation to each other, if theoperation oiv the machine is stopped by. abnormal resistance of the shoeto the operative move returning said device to 1115 holding position.

.19. In amachine for operating on shoes,

device for normally 7 the combination with means for operating on a shoein an automatically 7 determined cycle of operations of the machine, ofmeans displaceable from its normal operative position, it the operationof the machine'is stopped by abnormal resistance of the shoe tothe'mov'ement of said operating means, to. decreasethat resistancesufiiciently to per mit the machine to complete itscycle.

20. In a machine for operating on shoes, the combination with means foroperating on a shoe in an automatically determined cycle of operationsof the machine, of automatic mechanism for controlling the shoe in thenormal operation of the machine, saidmechanism comprising partsrelatively movable out of their normal operative relation to each otherto decrease the resistance of the shoe to the movement of" saidoperating means if the resistance is such as to mechanism comprisingparts relatively movable out of theirnormal operative relation to each.other to release the shoe supportif the shoe opposes abnormal resistanceto the movement of said operating means.

'22. In amachine for operating on shoes, the combination with means foroperating on a shoe in an automatically determined cycle of operationsof the machine, of mech anism :tor'controlling the shoe in the normaloperation 'ofthe machine, said mechanism comprising a lever having partsrelatively movable out of their normal operative relation to each otherto decrease the re sistance of the shoe to the movement ofsaid operatingmeans if the resistance is such as to preventthe completion of thatmovement. "23. In a machine for operating on shoes, the combination with,means for operating on a shoe-in an automatically determined cycle ofoperations of the machine, of mechanism movable after the beginning ofthe operation of the machine to decrease the resistance of the shoe tothe movement of said operating means if the resistance is such as toprevent the completion of that movement, and automatic means forrestoring said mechanism to its normal condition priorto the nextoperation of the machine ona shoe. 24. In a machine for operating onshoes, the combination with means for operating on ashoe' in anautomatically'determined cycle of operations of the machine, ofautomatic mechanism for controlling the shoe in the normal operation ofthe machine, said mechanism comprising parts relatively mov able out oftheir normal operatlve relation prevent to each other, it the operationof the 7 the'combination with-means for operating 7 on a shoe, ofmechanism movable man auto-v matlcally determlned cycle of operations ofthe'machin'e tocontrol the shoe, a portion of said Il'lGCllELlllSHl'being dlsplaceable from its normal operative position at the will of theoperator after the beginning ofthe- 'operationot the machine'on the shoeto'interrupt its control of the shoe' 26. In a' machine for operatingonl shoes,

the combination with means for operating on a shoe,of mechanism movablein an automatically determined cycle of operations of themachineto clampand hold the'shoe' independently of said operating means, said mechanismcomprising parts r latively movable out of their normal operative'rel'ation to each other at the will of the operator after the clampingof the shoe to relaxthe clamping pressure. f p 27. In a machine foroperating on shoes, the combination with means for operating on a shoe,of mechanism movable in an auto matically determined cycleof operationsof themachine to control the shoe, said mechanism comprising partsrelatively movable out of their normal operative relation to each otherat the will of theoper'ator after the beginning ofthe operation of themachine on the shoe to interrupt their control of the shoe, andautomatic means for restoring said parts to their normal relation toeach other: prior to the next operation of the machine on a shoe. v

28. In a machine for operating onfshoes, the combination withpower-operated means movable to operate on a shoe, of mechanism movableto clamp the shoe in a predetermined relation to said operating means, aportion of saidmechanism being displaceable to render the shoe yieldableto the action'of said operatingmeans in the event of abnormal resistancetothe operationof said means. W (V I Q 1 r V 29 In a machine foroperating "on shoes, the combination with means for operating on afshoe,of shoe-controlling mechanism, acam for operating said-mechanism, and

means for interrupting the operative relation between said cam and theshoe-controlling mechanism 1n the event of abnormal resistance of theshoe to the'movemen't of J said operating means.

' In. a machine for operating on shoes, the combination with means foroperating on a'shoe, of a cam and mechanism operated thereby forcontrolling the shoe, said mechanism comprising parts relatively movableat the will of the operator out of their normal operative relation toeach other between the beginning and the end of the operation of themachine on the shoe to interrupt their control of the shoe.

31. In a machine for operating on shoes, the combination with means foroperating on a shoe, of mechanism for controlling the shoe comprisingalever having parts relathe machine continues its operations, and

means for normally maintaining said parts in a fixed relation to eachother throughout the operation of the machine.

33. In a machine for operating on shoes, the combination with means foroperating on a shoe, oi power-operated cam mechanism for automaticallyclamping and holding the shoe independently of said operating means,said mechanism comprising parts relativelymovable outv of their normaloperative relation to eachother at the will of the operator after theclamping of the shoe to relax the clamping pressure.

34. In a machine for operating on shoes,

the combination with means for operating on a shoe, of power-operatedmechanism for clamping and holding the shoe automatically' for theoperation of said means thereon, said mechanism comprising partsrelatively movable out of their normal operative relation to each otherbetween the beginning and the end of the operation of the machine on theshoe to relax the clamping pressure, and means normally operative tomaintain said parts continuously in their normal relation to each otherthroughout the operation of the machine but displaceable to permit theirrelative movement. 35. In a machine for operating on shoes, thecombination with means for operating on a shoe, of mechanism for clampinand holding the shoe for the operation 0 said means thereon, saidmechanism comprising a lever having parts normally in fixed relation toeach other throughout the operation of the machine but relativelymovable out of their normal relation to each other after the clamping ofthe shoe to relax the clamping pressure it the shoe is improperlypositioned.

36. In a machine for operating on shoes,

the combination with means for operating on a shoe, of mechanism forclamping and holding the shoe for the operation of said.

means thereon, said mechanism comprising a lever having parts normallyin fixed relation to each other throughout the operation of the machinebut relatively movable out of their normal relation to each other afterthe clamping of the shoeto relax the clampingpressure if the shoe isimproperly positioned, a latch for maintaining said parts in theirnormal relation to each other, and a member movable to displace saidlatch from its operative position.

37. In amachinefor operating on shoes, the combination with meansfor-operatingon a-shoe, of mechanism for clamping and holding the shoefor the operation ofsa-id means thereon, said mechanism comprisingaficamoperated bell cranlr lever provided withtwo pivotally connectedparts relatively movable at the will of the operator after the clampingof the shoe to relax the clamping pressure, and a member arrangednormally to, hold said parts in a fixed r'elation to each other butdisplaceable to. permit their relative movement. I

38. In a machine for operating on shoes, the combination with means foroperating on a shoe, of a holddown for engaging the bottom of the shoe,a ack movable to press the shoe against the holddown, a clamping bandfor embracing an end of the shoe, and a member for controlling both thejack and the clamping'band, said member having parts relatively movableout of their normal relation toeach other to relax the pressure of theshoe on the'holddown and the pressure of the band on the shoe; f

39. In a machine for operating on shoes,

thecombination with means for operating on a shoe, of a holddown forengagmg'the bottomof the shoe, a .jack movable to press the shoe againstthe holddown, a clamping.

tivelymovable out of their normal, relation to each other to relax thepressure of the shoe on the holddown: and-thepressure of the band on theshoe, and a device arranged, normally to maintain said parts ina fixedrelation to each other but displaceable to 1 permit their relativemovement. 7

In testimony whereof'I have signed my nameto this specification.

JACOB o. JoReENsEN.

